<template>
  <div class="todo-container">
    <div class="todo-wrap">
      <Header :addtodoHandle="addtodoHandle" />
      <Main
        :todoList="todoList"
        :changedoneHandle="changedoneHandle"
        :deletetodoHandle="deletetodoHandle"
      />
      <Footer
        :todoList="todoList"
        :checkAllHandle="checkAllHandle"
        :deleteOkAllHandle="deleteOkAllHandle"
      />
    </div>
  </div>
</template>

<script>
import Header from "./components/Header/Header.vue";
import Footer from "./components/Footer/Footer.vue";
import Main from "./components/Main/Main.vue";
export default {
  name: "App",
  components: { Header, Footer, Main },
  data() {
    return {
      todoList: [],
    };
  },
  methods: {
    //添加事件
    addtodoHandle(value) {
      this.todoList.unshift(value);
    },
    //修改done事件
    changedoneHandle(id) {
      this.todoList = this.todoList.map((item) => {
        return item.id === id ? { ...item, done: !item.done } : item;
      });
    },
    //删除单个todo事件
    deletetodoHandle(id) {
      this.todoList = this.todoList.filter((item) => {
        return item.id !== id;
      });
    },
    //全选逻辑
    checkAllHandle(value) {
      this.todoList = this.todoList.map((item) => {
        return { ...item, done: value };
      });
    },
    //删除所有已完成的事件
    deleteOkAllHandle() {
      this.todoList = this.todoList.filter((item) => {
        return item.done !== true;
      });
    },
  },
  mounted() {
    this.todoList = JSON.parse(localStorage.getItem("todoList")||"[]");
  },
  watch: {
    todoList: {
      deep: true,
      handler() {
        localStorage.setItem("todoList", JSON.stringify(this.todoList));
      },
    },
  },
};
</script>

<style>
/*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}
</style>
